Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d452be99e08956a…

MALICIOUS

PDF

41.7 KB Created: 2020-08-10 00:44:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49f37d2a9e4e8b41c4c8fa8b70ddab91 SHA-1: 6aeea65227ebe5b0742a01af03bc73576e1ca349 SHA-256: 1d452be99e08956ab20e6701f3d3cc6d7f112fc07733b34084e2560553eaff0b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.com/pify?keyword=csb+study+bible+pdf+download`. This indicates a phishing or scam attempt disguised as a legitimate download. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO manipulation tactic to distribute the malicious content.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=csb+study+bible+pdf+download
    • http://files.ciprianoclassic.com/uploads/1/3/0/7/130775023/fufawugejijaxofa.pdf
    • http://files.adelaidechickensittingservice.com/uploads/1/3/1/8/131857071/wovakemeluwo-bokevanukapaku.pdf
    • http://files.atlanticmusictherapy.com/uploads/1/3/1/3/131383860/kafigomafaro-megekifokor-motalum-vasizusaxunam.pdf
    • http://bowefoxot.clairescraftsonline.co.uk/uploads/1/3/0/7/130775997/5686086.pdf
    • https://cdn.shopify.com/s/files/1/0437/4318/2999/files/information_about_football_game.pdf
    • https://cdn.shopify.com/s/files/1/0435/6695/6707/files/70963913764.pdf
    • https://cdn.shopify.com/s/files/1/0429/1297/2963/files/63942912954.pdf
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/23711353392.pdf
    • https://cdn.shopify.com/s/files/1/0429/9338/5633/files/23856029888.pdf
    • https://cdn.shopify.com/s/files/1/0431/2681/6932/files/51710422432.pdf
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/aadhar_card_password_hint.pdf
    • https://cdn.shopify.com/s/files/1/0435/4372/4186/files/23401531645.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/82855926652.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jujirufevob.pdf
    • https://cdn.shopify.com/s/files/1/0431/2812/7650/files/3179052457.pdf
    • https://cdn.shopify.com/s/files/1/0437/3279/5541/files/anexar_a_word.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064ec.bin
2dbc9a0482a3baa7dc60ecfd92cd7194f1a549779eba73187e646679278a3de1
pdf-font-stream PDF embedded font (sfnt) at offset 0x64EC 5180 bytes
font_01_sfnt_off000076b0.bin
4df0652d25394c3f6a450496dc915bf15719d960e0d0ddb8d59625aceb8878b5
pdf-font-stream PDF embedded font (sfnt) at offset 0x76B0 10304 bytes